Base station



FIG. 1 is a perspective view of front, top and right side of a base station showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures are included for the purpose of illustrating unclaimed portions of the base station and form no part of the claimed design. 

CLAIM The ornamental design for a base station, as shown and described. 